Stefan Dirsch
e07303b26d
reviewed ok. OBS-URL: https://build.opensuse.org/request/show/57199 OBS-URL: https://build.opensuse.org/package/show/X11:XOrg/xorg-x11-server?expand=0&rev=322
30 lines
1.1 KiB
Plaintext
30 lines
1.1 KiB
Plaintext
From: Michel Dänzer <michel@daenzer.net>
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Subject: Pad size of system memory copy for 1x1 pixmaps
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References: bfo#32803 bnc#652523
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Temporary description by: Jeff Mahoney <jeffm@suse.com>
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This patch fixes a crash that occured frequently with glibc malloc
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perturbing enabled and was a bit more random otherwise. The issue
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appears to be that the pExaPixmap for 1x1 pixmaps was allocating a single
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byte. The patch uses paddedWidth, which I expect is 4 bytes instead.
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Acked-by: Jeff Mahoney <jeffm@suse.com>
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---
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exa/exa_mixed.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/exa/exa_mixed.c b/exa/exa_mixed.c
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index ef20eb5..606f1e1 100644
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--- a/exa/exa_mixed.c
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+++ b/exa/exa_mixed.c
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@@ -98,7 +98,7 @@ exaCreatePixmap_mixed(ScreenPtr pScreen, int w, int h, int depth,
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pExaPixmap->use_gpu_copy = FALSE;
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if (w == 1 && h == 1) {
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- pExaPixmap->sys_ptr = malloc((pPixmap->drawable.bitsPerPixel + 7) / 8);
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+ pExaPixmap->sys_ptr = malloc(paddedWidth);
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/* Set up damage tracking */
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pExaPixmap->pDamage = DamageCreate(exaDamageReport_mixed, NULL,
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